Science 8 Quarter 1 Week 1: Newton's Three Laws of Motion

Grade 8 Science Week 1

1. Newton’s Law of Motion: Law of Inertia and Law of Acceleration Quarter 1, Week 1 8th Grade

2. Investigate the relationship between the amount of force applied and the mass of the object to the amount of change in the object’s motion . (S8FE-Ia-15-Q1) Learning Competency

3. REVIEW from PREVIOUS GRADE :) Identify the direction of the following object that are in MOTION.

4. What is the direction of the moving object? 5N 5N

5. In this scenario is their a FORCE applied? PUSH (moving away)

6. FORCE with SAME direction 5N 5N ADD 5N + 5N = 10N

7. What is the direction of the moving object? 5N 10N

8. In this scenario is their a FORCE applied? 5N 10N PULL (toward’s you)

9. FORCE with DIFFERENT direction 10 N 5 N SUBTRACT 10 N - 5N = 5N

10. c an cause FORCE We can say that MOTION

11. can cause FORCE Does apply MOTION i n all objects?

12. (Subtract) 5N 5N Dif ferent Direction 5 N - 5N = 0 BALANCE

13. (Subtract) 5N 10 N Different Direction 10 N - 5N = 10N UN BALANCE

14. LAW OF Newton’s MOTION LAW OF INERTIA

15. Law of INERTIA States that: body will remain at rest or move at a constant velocity unless acted upon by an external or unbalanced force.

16. LAW OF Newton’s MOTION LAW OF ACCELERATION

17. Law of ACCELERATION States that: the Acceleration of an object is directly proportional to the magnitude of the net force acting on it and inversely proportional to its mass.

18. Sample Problem: Suppose a ball of mass 0.60kg is hit with a force of 12N, its acceleration will be? (kg.m/s 2 )

19. Sample Problem: Suppose a ball of mass 0.60kg is hit with a force of 12N , its acceleration will be? What is asked? What is given? What is the formula? Solution:

20. Sample Problem: Suppose a ball of mass 0.60kg is hit with a force of 12N , its acceleration will be? What is asked? Acceleration (a)

21. Sample Problem: Suppose a ball of mass 0.60kg is hit with a force of 12N, its acceleration will be? What is given? m (Mass) = 0.60 kg F (Force) = 12 N

22. Sample Problem: Suppose a ball of mass 0.60kg is hit with a force of 12N, its acceleration will be? What is the formula? a = F m

23. Sample Problem: Suppose a ball of mass 0.60kg is hit with a force of 12N, its acceleration will be? Solution: a=F/m a=12N/0.60Kg a=12 kg.m/s 2 / 0.60kg a=20m/s2

24. QUESTIONS? CLARIFICATION?

25. 2 . Water Cycle 1. Match the words with the corresponding states of matter: Liquid Solid Gaseous Clouds Sea Ice

26. 2 . Water Cycle 2 . Complete the following sentences: The Sun warms the sea, producing small water drops that rise to form _____. When they are heavy, the _____ fall producing the rain. Rainwater falls to land and _____ , producing the water cycle.

27. 3 . Rocks 1 . Indicate which of the following rocks are soft: Sandstone Limestone Slate Clay Gypsum Granite

28. 3. Rocks 2 . Indicates the minerales: Quartz Granite Emerald Pyrite Slate Yes ___ ___ ___ ___

29. https://forms.gle/M75tnGK7tYu5B2js9 Google Form

30. Thank You!